Inner diameter: 17 These are very cute mixed mica stones. They're colorful, so they might lift your spirits! Mixed mica refers to natural stone bracelets and power stones that are a mixture of several types of mica. They are characterized by the silky luster and soft colors unique to mica, and are said to have the effect of drawing out love, healing, and positive feelings. They are also called "stones of transformation," and are said to support the expansion of one's potential and the building of realistic happiness. #Lepidolite #Mica #NaturalStone